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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
614 | * |
615 | * Most of WP is loaded at this stage, and the user is authenticated. WP continues |
616 | * to load on the {@see 'init'} hook that follows (e.g. widgets), and many plugins instantiate |
617 | * themselves on it for all sorts of reasons (e.g. they need a user, a taxonomy, etc.). |
618 | * |
619 | * If you wish to plug an action once WP is loaded, use the {@see 'wp_loaded'} hook below. |
620 | * |
621 | * @since 1.5.0 |
622 | */ |
623 | do_action( 'init' ); |
624 |
|
625 | // Check site status. |
626 | if ( is_multisite() ) { |
627 | $file = ms_site_check(); |
628 | if ( true !== $file ) { |
629 | require $file; |
630 | die(); |
631 | } |
632 | unset( $file ); |